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DSST Physical Sciences Principles

Subjects : dsst, science

Instructions:

Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
Disorder
Means less power is transmitted
Increases the energy
Momentum

2. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
5 m/s
263 degrees kelvin
Newtons third principle of Universal Gravitation
Momentum

3. Electromagnetic radiation can be viewed as...
Mechanical - chemical - and radiant energy
Waves and particles
Halogen radicals interfering in ozone synthesis
5 m/s

4. Neglecting air resistance - a ball in free fall near the earth's surface will have...
Increasing speed and constant acceleration
12 miles per hour
Newtons third principle of Universal Gravitation
Difference in the sped of light in water vs. air

5. Heat is the...
Movement
Total internal energy of an object
Means less power is transmitted
Newtons first principle of Universal Gravitation

6. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Momentum
Newtons third principle of Universal Gravitation
Difference between the heat supplied and the heat exhausted
Waste heat for secondary uses

7. At a given speed - the centripetal force - the smaller the circle.
Third principle of Centripetal force
Means less power is transmitted
Difference in the sped of light in water vs. air
Increases the energy

8. All objects with mass are attracted to another by the gravitational force
Less on the moon
Second principle of Centripetal force
Difference in the sped of light in water vs. air
Newtons first principle of Universal Gravitation

9. The work that a heat engine is able to accomplish is ideally equivalent to the
First principle of Centripetal force
Difference between the heat supplied and the heat exhausted
Twice the work
Near a maximum

10. The heat involved in the change of phase of phase from solid ice to liquid water is called...
Heat of fusion
Difference between the heat supplied and the heat exhausted
Increasing speed and constant acceleration
Means less power is transmitted

11. A temperature of -10 degrees celsius is equivalent to...
Increasing speed and constant acceleration
First principle of Centripetal force
263 degrees kelvin
Means less power is transmitted

12. The ozone hole results from...
Halogen radicals interfering in ozone synthesis
Decreased
Means less power is transmitted
Remains unchanged

13. When you add heat to a substance - its temperature...
Halogen radicals interfering in ozone synthesis
Might stay the same
Waves and particles
Near a maximum

14. The theoretical production curve of oil indicates oil production is...
Difference between the heat supplied and the heat exhausted
Third principle of Centripetal force
Near a maximum
Waste heat for secondary uses

15. If a charging elephant has kinetic energy - it must also have...
263 degrees kelvin
Mechanical - chemical - and radiant energy
Momentum
Increases the energy

16. In burning coal - what contaminant is of major concern as a pollutant...
Newtons third principle of Universal Gravitation
Sulfur
Waste heat for secondary uses
Waves and particles

17. The larger the centripetal force - the faster an object travels in a circle of a given size
Second principle of Centripetal force
Increases the energy
Decreased
Increasing speed and constant acceleration

18. Increasing the frequency of light
12 miles per hour
Increases the energy
Might stay the same
Difference in the sped of light in water vs. air

19. Entropy refers to...
Disorder
Newtons second principle of Universal Gravitation
Mechanical - chemical - and radiant energy
263 degrees kelvin

20. Electrical energy can be converted to...
Heat of fusion
5 m/s
Increases the energy
Mechanical - chemical - and radiant energy

21. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
12 miles per hour
Increasing speed and constant acceleration
Near a maximum
Newtons first principle of Universal Gravitation

22. The weight of one kilogram of iron on earth is...
Less on the moon
Twice the work
Universal
Sulfur

23. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
Heat of fusion
12 miles per hour
5 m/s
Remains unchanged

24. The reason that a spear fisherman cannot see where the fish is actually located is...
Difference in the sped of light in water vs. air
Near a maximum
Might stay the same
Decreased

25. The gravitational force - two masses are directly proportional to the mass of each object
Means less power is transmitted
Increasing speed and constant acceleration
Heat of fusion
Newtons second principle of Universal Gravitation

26. Circular motion requires centripetal force
First principle of Centripetal force
Waves and particles
Sulfur
Less on the moon

27. Raising an auto in a service station requires work. Raising it twice as high requires...
Might stay the same
263 degrees kelvin
Twice the work
Newtons second principle of Universal Gravitation

28. cogeneration uses...
Waste heat for secondary uses
Halogen radicals interfering in ozone synthesis
Heat of fusion
Increases the energy

29. From the 50's and to the 70's - the pH of rain in the northeast had..
263 degrees kelvin
Decreased
Disorder
Difference in the sped of light in water vs. air

30. In a generator - the flow of electrons (current) is created by...
Universal
Difference in the sped of light in water vs. air
Movement
Total internal energy of an object

31. Which is not one of the fundamental forces of nature...
Universal
First principle of Centripetal force
Waves and particles
Waste heat for secondary uses